In Grimtools you can search using regular expressions (often shortened as "regex") if you put your search query in slashes ( / )

A regular expression is a sequence of characters that define a search pattern

Example: /[%] aether damage/

In the above exaple we use "/" at the start and the end of the search query to let grimtools know that we will be using regular expressions.

The regular experssion we use here is "[^ ]", which excludes the characters contained within the brackets from the search. In this case we don't want to look "%". This leaves only flat damage bonuses and procs that deal Aether damage.

There are many regular expressions and their syntax can become very complicated when many criteria are included.

This tools is designed to automatically generate the desired regular expressions, based on the user's criteria.

(Thanks to u/Molvath for writing this) Reach out to u/Agathos117 on reddit for any support.